Introduction. When calculating band-pass filters (BPF), the circuit elements can be determined by converting parameters of prototype low-pass (LPF). In a number cases, synthesized BPF does not have direct in low-frequency range. Such include, e.g., BPFs with nodes tied to zero potential and other types filters. Filters calculated directly equating coefficients filter transfer function (TF) real...

The current paradigm for tuning synthetic biological systems is through re-engineering system components. Biological systems designed with the inherent ability to be tuned by external stimuli will be more versatile. We engineered Escherichia coli cells to behave as an externally tunable band-pass filter for enzyme activity and small molecules. The band's location can be positioned within a rang...

This paper describes the design, manufacturing and experiments of a lumped element band pass filter in a new topology. The design starts from a second order capacitive coupled resonator topology. An additional series inductor is inserted in the filter classical topology, for shifting two transmission zeros on the real frequency axes in the filter’s band stop, to improve the high frequency respo...

This paper presents a design and performance analysis of tunable RF front end circuits such as RF band pass filter and VCO for multiband applications. The tunable element is an active inductor, built by MOS transistors. It is attractive due to its tunable and larger inductance values. The RF band pass filter is realized using active inductor with suitable input and output buffer stages. The tun...

A new current-mode band-pass filter using the inverting second-generation current conveyor (ICCII) is introduced. The circuit is generated from a frequency-dependent negative resistance (FDNR)-C circuit realized using ICCII+. It is observed that a voltagemode band-pass filter using two CCII+ has similar transfer function to this current-mode filter. The adjoint network theorem is used to demons...

This paper presents a new method to improve the frequency response of CIC compensation filter. After the CIC filter cascaded the fir filter which has inversed magnitude response to CIC compensation filter was proposed, which improved the pass band and the transition band features of the CIC filter and improved the performance of CIC compensation filter. The decimation factor introduced. It pres...

This paper reports a novel band pass filter without any periodic response. The novel filter has been named Rectangular Parallel Coupled Line filter (RPCL) and derived from reforming the conventional parallel coupled line filters. The novel band-pass filter has narrowband response. RPCL filter with center frequency of 475 MHz, 1 dB pass-band of 10MHz and 25 dB stop-band of 50MHz has been reporte...

A novel bandpass filter (BPF) based on half-wave-length (λ/2) stepped-impedance resonators (SIRs) is proposed in this paper. By properly designing the impedance ratios of the SIRs, the spurious harmonics of the filter can be pushed to upper frequency. With several bandstop structures such as open stubs and defected ground structures (DGSs) applied to the BPF, a good stopband performance is obta...